/*
* Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*
* Private definitions for libc, libc_r and libpthread.
*
*/
#ifndef _LIBC_PRIVATE_H_
#define _LIBC_PRIVATE_H_
#include <sys/_pthreadtypes.h>
/*
* This global flag is non-zero when a process has created one
* or more threads. It is used to avoid calling locking functions
* when they are not required.
*/
extern int __isthreaded;
/*
* libc should use libc_dlopen internally, which respects a global
* flag where loading of new shared objects can be restricted.
*/
void *libc_dlopen(const char *, int);
/*
* For dynamic linker.
*/
void _rtld_error(const char *fmt, ...);
/*
* File lock contention is difficult to diagnose without knowing
* where locks were set. Allow a debug library to be built which
* records the source file and line number of each lock call.
*/
#ifdef _FLOCK_DEBUG
#define _FLOCKFILE(x) _flockfile_debug(x, __FILE__, __LINE__)
#else
#define _FLOCKFILE(x) _flockfile(x)
#endif
/*
* Macros for locking and unlocking FILEs. These test if the
* process is threaded to avoid locking when not required.
*/
#define FLOCKFILE(fp) if (__isthreaded) _FLOCKFILE(fp)
#define FUNLOCKFILE(fp) if (__isthreaded) _funlockfile(fp)
/*
* Indexes into the pthread jump table.
*
* Warning! If you change this type, you must also change the threads
* libraries that reference it (libc_r, libpthread).
*/
typedef enum {
PJT_ATFORK,
PJT_ATTR_DESTROY,
PJT_ATTR_GETDETACHSTATE,
PJT_ATTR_GETGUARDSIZE,
PJT_ATTR_GETINHERITSCHED,
PJT_ATTR_GETSCHEDPARAM,
PJT_ATTR_GETSCHEDPOLICY,
PJT_ATTR_GETSCOPE,
PJT_ATTR_GETSTACKADDR,
PJT_ATTR_GETSTACKSIZE,
PJT_ATTR_INIT,
PJT_ATTR_SETDETACHSTATE,
PJT_ATTR_SETGUARDSIZE,
PJT_ATTR_SETINHERITSCHED,
PJT_ATTR_SETSCHEDPARAM,
PJT_ATTR_SETSCHEDPOLICY,
PJT_ATTR_SETSCOPE,
PJT_ATTR_SETSTACKADDR,
PJT_ATTR_SETSTACKSIZE,
PJT_CANCEL,
PJT_CLEANUP_POP,
PJT_CLEANUP_PUSH,
PJT_COND_BROADCAST,
PJT_COND_DESTROY,
PJT_COND_INIT,
PJT_COND_SIGNAL,
PJT_COND_TIMEDWAIT,
PJT_COND_WAIT,
PJT_DETACH,
PJT_EQUAL,
PJT_EXIT,
PJT_GETSPECIFIC,
PJT_JOIN,
PJT_KEY_CREATE,
PJT_KEY_DELETE,
PJT_KILL,
PJT_MAIN_NP,
PJT_MUTEXATTR_DESTROY,
PJT_MUTEXATTR_INIT,
PJT_MUTEXATTR_SETTYPE,
PJT_MUTEX_DESTROY,
PJT_MUTEX_INIT,
PJT_MUTEX_LOCK,
PJT_MUTEX_TRYLOCK,
PJT_MUTEX_UNLOCK,
PJT_ONCE,
PJT_RWLOCK_DESTROY,
PJT_RWLOCK_INIT,
PJT_RWLOCK_RDLOCK,
PJT_RWLOCK_TRYRDLOCK,
PJT_RWLOCK_TRYWRLOCK,
PJT_RWLOCK_UNLOCK,
PJT_RWLOCK_WRLOCK,
PJT_SELF,
PJT_SETCANCELSTATE,
PJT_SETCANCELTYPE,
PJT_SETSPECIFIC,
PJT_SIGMASK,
PJT_TESTCANCEL,
PJT_MAX
} pjt_index_t;
typedef int (*pthread_func_t)(void);
typedef pthread_func_t pthread_func_entry_t[2];
extern pthread_func_entry_t __thr_jtable[];
/*
* yplib internal interfaces
*/
#ifdef YP
int _yp_check(char **);
#endif
/*
* Initialise TLS for static programs
*/
void _init_tls(void);
/*
* Provides pthread_once()-like functionality for both single-threaded
* and multi-threaded applications.
*/
int _once(pthread_once_t *, void (*)(void));
/*
* Set the TLS thread pointer
*/
void _set_tp(void *tp);
/*
* This is a pointer in the C run-time startup code. It is used
* by getprogname() and setprogname().
*/
extern const char *__progname;
/*
* This function is used by the threading libraries to notify malloc that a
* thread is exiting.
*/
void _malloc_thread_cleanup(void);
/*
* These functions are used by the threading libraries in order to protect
* malloc across fork().
*/
void _malloc_prefork(void);
void _malloc_postfork(void);
/*
* Function to clean up streams, called from abort() and exit().
*/
extern void (*__cleanup)(void);
/*
* Get kern.osreldate to detect ABI revisions. Explicitly
* ignores value of $OSVERSION and caches result. Prototypes
* for the wrapped "new" pad-less syscalls are here for now.
*/
extern int __getosreldate(void);
#include <sys/_types.h>
/* Without pad */
extern __off_t __sys_lseek(int, __off_t, int);
extern int __sys_ftruncate(int, __off_t);
extern int __sys_truncate(const char *, __off_t);
extern __ssize_t __sys_pread(int, void *, __size_t, __off_t);
extern __ssize_t __sys_pwrite(int, const void *, __size_t, __off_t);
extern void * __sys_mmap(void *, __size_t, int, int, int, __off_t);
/* With pad */
extern __off_t __sys_freebsd6_lseek(int, int, __off_t, int);
extern int __sys_freebsd6_ftruncate(int, int, __off_t);
extern int __sys_freebsd6_truncate(const char *, int, __off_t);
extern __ssize_t __sys_freebsd6_pread(int, void *, __size_t, int, __off_t);
extern __ssize_t __sys_freebsd6_pwrite(int, const void *, __size_t, int, __off_t);
extern void * __sys_freebsd6_mmap(void *, __size_t, int, int, int, int, __off_t);
/* Without back-compat translation */
extern int __sys_fcntl(int, int, ...);
/* execve() with PATH processing to implement posix_spawnp() */
int _execvpe(const char *, char * const *, char * const *);
#endif /* _LIBC_PRIVATE_H_ */
